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Note: If you do not remove the card from your computer after you eject the card from the Windows
operating system, the card can no longer be accessed. To access the card, you must remove it once,
then insert it again.
Using USB connectors
Your computer is preinstalled with USB connectors compatible with USB 1.1, 2.0, or 3.0 devices.
Note: When using a high power consumption USB device such as a USB optical drive, use the power
adapter that comes with the device. Otherwise, the device may not be recognized, and the system might be
shut down.
Using the NVIDIA Optimus Graphics feature
Some Lenovo notebook computers support NVIDIA Optimus Graphics.
NVIDIA Optimus Graphics enables a dynamic switch, that is, a switch with no need to restart your computer
between High Performance and Energy Saving.
Switching the Graphics Processing Unit
If your computer supports NVIDIA Optimus Graphics, the Graphics Processing Unit is switched automatically
depending on the power settings you use.
Chapter 2. Using your computer 19